Dynaco ST-35 Repair And Restoration

This Dynaco ST-35 is in nice cosmetic condition but after 50 years the unit needs some restoration.

The image below shows the back of the Dynaco ST-35 tube amplifier also know as the "baby dynaco".

The top cover is off. I replaced the filter capacitor as well as the coupling capacitors.

I also replaced all of the resistors as I found that many of them were 20% or better out of spec.

I have the original Dynaco labeled 6BQ5 output tubes but have JJ's installed along with the original Dynaco 7247 driver tubes.

The Dynaco ST-35 repair and restoration is complete. This amplifier really sounds good with efficient speakers.